071  
FNCA52 TJSJ 290750  
FWFSJU  
 
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO  
NATIONAL WEATHER SERVICE SAN JUAN PR  
350 AM AST SUN JAN 29 2023  
   
DISCUSSION
 
PATCHES OF MOISTURE CONTINUE TO ENTER TO THE LOCAL  
REGION, DEVELOPING SHALLOW SHOWERS ACROSS THE ISLANDS. HOWEVER,  
ACROSS THE SOUTHERN COASTAL PLAINS IMITED SHOWER ACTIVITY IS  
FORECASTED TODAY. DUE TO A NORTHEASTERLY WIND FLOW AND SOME  
MOISTURE CONTENT ACROSS THE ISLANDS RH VALUES SHOULD REMAIN ABOVE  
THRESHOLD. NONETHELESS, KBDI VALUES ARE AT 588 IN CAMP SANTIAGO  
AND 478 AND CABO ROJO, AND CLOSE TO (OR AT) THE 10-HR FUEL  
MOISTURE VALUES. A DRIER TREND IS FORECASTED TO CONTINUE BUT AT  
THIS TIME, A FIRE DANGER STATEMENT WILL NOT BE ISSUED BUT WILL  
CONTINUE TO BE MONITORED THROUGH THE DAY.  
 
PRZ014-300800-  
SOUTHEAST COASTAL PLAINS-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER MCLEAR MCLEAR MCLEAR  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 10 10 20  
TEMP (24H TREND) 85 (+1) 64 (-3) 85  
RH % (24H TREND) 48 (-4) 95 (+6) 45  
WIND 20FT/EARLY(MPH) NE 8 G23 NE 8 G17 NE 10 G23  
WIND 20FT/LATE(MPH) E 13 G26 NE 7 G17 NE 12 G24  
MIXING HGT(FT-AGL/MSL)5820 5920  
TRANSPORT WND (MPH) E 17 NE 15  
VENT RATE (KT-FT) 87300 76960  
DISPERSION 5 5  
DSI 6 5 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ015-300800-  
SOUTHERN HILLS-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 20 20 20  
TEMP (24H TREND) 83 (+3) 57 (-4) 83  
RH % (24H TREND) 54 (-7) 100 (+2) 56  
WIND 20FT/EARLY(MPH) NE 6 NE 6 NE 8 G17  
WIND 20FT/LATE(MPH) NE 10 NE 6 NE 10  
MIXING HGT(FT-AGL/MSL)6140 5880  
TRANSPORT WND (MPH) E 17 NE 16  
VENT RATE (KT-FT) 92100 82320  
DISPERSION 5 5  
DSI 5 4 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ016-300800-  
NORTH COASTAL PLAINS-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 60 60 60  
TEMP (24H TREND) 83 (0) 66 (-3) 84  
RH % (24H TREND) 60 (-2) 100 (+7) 60  
WIND 20FT/EARLY(MPH) E 11 G20 NE 11 G19 E 13 G22  
WIND 20FT/LATE(MPH) E 14 E 11 G19 NE 13 G21  
MIXING HGT(FT-AGL/MSL)5050 4980  
TRANSPORT WND (MPH) E 20 NE 20  
VENT RATE (KT-FT) 85850 84660  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ017-300800-  
NORTHERN HILLS-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 60 60 40  
TEMP (24H TREND) 83 (+1) 57 (-3) 83  
RH % (24H TREND) 61 (-2) 100 (0) 61  
WIND 20FT/EARLY(MPH) E 8 G18 E 10 E 11 G20  
WIND 20FT/LATE(MPH) NE 12 E 9 NE 12  
MIXING HGT(FT-AGL/MSL)5480 4990  
TRANSPORT WND (MPH) E 18 NE 18  
VENT RATE (KT-FT) 87680 79840  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ018-300800-  
WEST COAST-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLEAR MCLEAR  
PRECIP TYPE SHOWERS NONE SHOWERS  
CHANCE PRECIP (%) 40 0 20  
TEMP (24H TREND) 86 (+1) 62 (-3) 86  
RH % (24H TREND) 51 (-5) 100 (+4) 52  
WIND 20FT/EARLY(MPH) E 9 G18 NE 9 G19 E 10 G21  
WIND 20FT/LATE(MPH) E 9 G18 NE 9 G18 NE 10 G21  
MIXING HGT(FT-AGL/MSL)5330 5620  
TRANSPORT WND (MPH) E 15 NE 17  
VENT RATE (KT-FT) 69290 84300  
DISPERSION 5 5  
DSI 6 5 6  
LAL 1 1 1  
HAINES INDEX 2 2 3  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ019-300800-  
EASTERN INTERIOR-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 60 60 60  
TEMP (24H TREND) 82 (+2) 60 (-4) 83  
RH % (24H TREND) 59 (-4) 100 (+2) 63  
WIND 20FT/EARLY(MPH) NE 7 NE 6 NE 9 G17  
WIND 20FT/LATE(MPH) NE 11 NE 6 NE 10  
MIXING HGT(FT-AGL/MSL)5670 5140  
TRANSPORT WND (MPH) E 18 NE 17  
VENT RATE (KT-FT) 90720 77100  
DISPERSION 5 5  
DSI 5 4 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ022-300800-  
LUQUILLO MOUNTAIN RANGE-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLDY MCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 60 60 60  
TEMP (24H TREND) 78 (+3) 60 (-3) 79  
RH % (24H TREND) 66 (-2) 100 (0) 68  
WIND 20FT/EARLY(MPH) NE 8 NE 7 NE 10  
WIND 20FT/LATE(MPH) NE 11 NE 7 NE 10  
MIXING HGT(FT-AGL/MSL)5170 5020  
TRANSPORT WND (MPH) E 20 NE 17  
VENT RATE (KT-FT) 87890 75300  
DISPERSION 5 5  
DSI 5 5 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ023-300800-  
CENTRAL MOUNTAIN RANGE-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 30 30 20  
TEMP (24H TREND) 82 (+3) 54 (-3) 82  
RH % (24H TREND) 57 (-5) 100 (0) 58  
WIND 20FT/EARLY(MPH) NE 6 NE 6 NE 8 G18  
WIND 20FT/LATE(MPH) NE 9 NE 7 NE 10 G18  
MIXING HGT(FT-AGL/MSL)6350 5470  
TRANSPORT WND (MPH) E 15 NE 17  
VENT RATE (KT-FT) 82550 82050  
DISPERSION 5 5  
DSI 5 4 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ024-300800-  
CAYEY MOUNTAIN RANGE-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 40 50  
TEMP (24H TREND) 79 (+2) 58 (-2) 79  
RH % (24H TREND) 63 (-3) 100 (0) 66  
WIND 20FT/EARLY(MPH) NE 6 NE 6 NE 8  
WIND 20FT/LATE(MPH) NE 11 NE 5 NE 10  
MIXING HGT(FT-AGL/MSL)5420 5160  
TRANSPORT WND (MPH) NE 20 NE 18  
VENT RATE (KT-FT) 92140 82560  
DISPERSION 5 5  
DSI 5 3 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ025-300800-  
VIEQUES-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 30 50 60  
TEMP (24H TREND) 83 (-1) 74 (+1) 83  
RH % (24H TREND) 56 (+4) 82 (-1) 59  
WIND 20FT/EARLY(MPH) NE 18 NE 18 NE 19  
WIND 20FT/LATE(MPH) NE 17 NE 19 NE 16  
MIXING HGT(FT-AGL/MSL)4030 4290  
TRANSPORT WND (MPH) NE 23 NE 21  
VENT RATE (KT-FT) 80600 77220  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 2 3  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ026-300800-  
CULEBRA-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 30 50 60  
TEMP (24H TREND) 82 (-1) 72 (0) 82  
RH % (24H TREND) 61 (+3) 88 (+1) 62  
WIND 20FT/EARLY(MPH) NE 18 NE 18 NE 19  
WIND 20FT/LATE(MPH) NE 17 NE 19 NE 16  
MIXING HGT(FT-AGL/MSL)4000 4160  
TRANSPORT WND (MPH) E 24 NE 22  
VENT RATE (KT-FT) 84000 79040  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 2 3  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
PRZ027-300800-  
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER MCLEAR CLEAR MCLEAR  
PRECIP TYPE SHOWERS NONE SHOWERS  
CHANCE PRECIP (%) 30 0 10  
TEMP (24H TREND) 85 (0) 64 (-3) 85  
RH % (24H TREND) 48 (-2) 97 (+4) 46  
WIND 20FT/EARLY(MPH) E 8 G23 NE 7 G23 E 9 G22  
WIND 20FT/LATE(MPH) E 12 G23 NE 6 G23 E 9 G22  
MIXING HGT(FT-AGL/MSL)5990 6570  
TRANSPORT WND (MPH) E 14 E 15  
VENT RATE (KT-FT) 71880 85410  
DISPERSION 5 5  
DSI 5 3 5  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
VIZ001-300800-  
SAINT THOMAS AND SAINT JOHN-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 50 60  
TEMP (24H TREND) 83 (0) 67 (-3) 83  
RH % (24H TREND) 58 (+6) 98 (+6) 60  
WIND 20FT/EARLY(MPH) NE 18 NE 18 NE 20  
WIND 20FT/LATE(MPH) NE 17 NE 19 NE 17  
MIXING HGT(FT-AGL/MSL)3820 4080  
TRANSPORT WND (MPH) E 25 NE 25  
VENT RATE (KT-FT) 84040 89760  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 2 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 
VIZ002-300800-  
ST CROIX-  
350 AM AST SUN JAN 29 2023  
 
TODAY TONIGHT MON  
 
CLOUD COVER PCLDY MCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 50 50  
TEMP (24H TREND) 85 (0) 67 (-1) 86  
RH % (24H TREND) 55 (+5) 100 (+3) 58  
WIND 20FT/EARLY(MPH) NE 16 NE 15 NE 17  
WIND 20FT/LATE(MPH) NE 15 NE 16 NE 16  
MIXING HGT(FT-AGL/MSL)4380 4650  
TRANSPORT WND (MPH) E 22 NE 23  
VENT RATE (KT-FT) 83220 93000  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 2 2  
RH RECOVERY EXCELLENT  
 
REMARKS...NONE.  
 

 
 

 
 
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